To ensure your feature is truly "solid" (water-tight for 3D printing or boolean operations):
: Use this to combine adjacent surfaces. Once all edges are joined and there are no holes, the object automatically becomes a "Closed Solid Polysurface". Rhinoceros 7.24.22297.11002 RC
: Select your object; the type should read "closed solid polysurface." Specific Version Note To ensure your feature is truly "solid" (water-tight
Version is a specific Service Release Candidate (RC). While it includes standard bug fixes and stability improvements, the fundamental solid-modeling engine remains consistent with the main Rhino 7 documentation. Create a Solid with Rhino 7 or 8 Rhinoceros 7.24.22297.11002 RC
: When extruding a closed curve (like a circle or square), ensure the Solid=Yes option is selected in the command line to create caps at both ends. Verification Tools